Improvement in pipe-weenches



NARD() F. LOI', OF NEW YORK N. Y;

Leiters Patent No. 78,299, dated .May 26, 1868.

IMPROVEMENT IN PIPE-WRENCHES.

@he Segnale refresh tu in tigese'rtnrs atent nur' limiting met if tige5mn.

'l ALL WI-IOM I'l MAY CONCERN: l

Be it known that I, NARDO F. LC of New York, in thev county and-,Stateof New York, have invented a new and improved PipefWrench; and I dohereby declare that the following is a full,clear, and exact descriptionthereof, which will enable those skilled in the art to make and use thesame, reference lbeing had to the accompanying drawings, forming part ofthis specification. i

Figure 1 represents a side view, partly in section, of my improvedpipe'wrench.

Figures 2, 3, and 4 are detail side views of the same.`

`Similar letters of reference indicate corresponding parts.

This invention relates to a new wrench, which isjso arranged that it canbe adapted for clamping all sizes .of pipe, from the smallest to thelargest, and also for elanipinglgplates'or other articles of suitableshape. It is,

in fact, a universal wrench, useful in every mach ine-shop, and whereverwrenches are required.

The instrument is formed chiefly oftwo levers; one is pivot'ed -to a nutthat workson the other lever, so

that the ends of the levers form jaws, that can, by means ofthe nut, bemoved as far apart or as close together as may be required.

lThe invention chiefly consists in the use of various'devices that canbe attached tothe ends ofl the levers, for the purpose of adapting theinstrument to any desired use, as will hereinafter be more fully setforth.

' A, in the drawing, represents a metal rod, having afliead,c, at oneend, andualscrew-'thread around its body near to the head. B is a'nut,which is screwed upon the rod A., C is an shaped bar,-'having itsshorter arm pivoted to the nut B, so that its longer arm will, inconnection with the lower part of the rod A, form the handles of thewrench. v

The head a of the rod A projects from the rodin the same directionin`which' the short arm b of the bar-'C projects, as in fig. The head ais perforated horizontally, so that a block, c, canvbe screwed'into it,as shown. The blocklc will, with itslower face, be opposite to the upperface of the arm b, `and these' two parts vwill thus form a pair ofgjawsfor elamping'anydesired article. The'lower arm; b, can," byturning the nut B,.be adjusted nearer to or farther'from the bloclc c,so that articles of suitable eine can he clamped. The arm bisperforat'ed to receive uprightjaws d, e, orf.

The jaw d, which can be fastenedby means of a pin, g, in the arm b, hasa. concave inner edge, which, connection with the concave lower edge oi'the h ead a, c, will serve to clampsmall pipes, as shown in iig. 2. Theyjaw d is or may be ma) np-and-down' adjustable, not only vonthe rod 'Aby means ofthe nut B, but also in the arm b,i`or \vhich purpose it isnotched asrshown.,

By. Ainserting in the arm b, instead oi' thejaw d, a jaw, e, end byscrewing an arm,.h, into the jaw-c, as in lig. 3, the device willbeadapted forclaniping largepipes. The jawn is laterally adjustable in thehead a, so that it can be set for pipe of any suitable diameter. l

By substituting a jaw, f, iig. 4, for the jaw d or e, and by'removingthejawsh and c, the device will be adapted for clamping plates or other`narrow articles between theroughcned jawf and the face of the head a.V

Hating thus described Vany invention, I- claim as new, and desire Itosecure by Letters'Patent- 1. The fixed handle A, when its head ais'perforated at right angles to the handle, to receive` the screw shankof the adjustablejaw c, which is vplaced above' and parllelwith the jawbof the handle C, as herein described, for the purpose specied. l

2. The construction, arrangement, and operation ofthe handle C, havingthe perforated jaw b, the pivoted nut B, screw-threaded handle A, heada, and adjustable jaw ',as herein described, forthe purposc'speeied.

3. 4The jaws d, e, f, when adjusted-in the arm b of the lever C, bymeansof the notches and transverse pin g,- as herein described forthepurpose specified.

N. F. LOI.

Witnesses: I l

WM. F. MeNaMAnA, ALEX. F. Ronsa'rs.

